nginx - workers segfaulting

[nmarques]

Dear All,

I'm facing a small problem with NGINX; The workers are segfaulting since
11:20 this morning. From kernel messages I got soemthing like this:

nginx[6888]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6886]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6890]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6889]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6892]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6893]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6894]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6891]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]
nginx[6896]: segfault at 8 ip 0000000000426a30 sp 00007fff85c01e70 error 4
in nginx[400000+a8000]

The log files show the following:

2013/12/02 18:13:53 [alert] 26876#0: worker process 30412 exited on signal
11
2013/12/02 18:13:53 [alert] 26876#0: worker process 30414 exited on signal
11
2013/12/02 18:13:53 [alert] 26876#0: worker process 30413 exited on signal
11
2013/12/02 18:13:54 [alert] 26876#0: worker process 30418 exited on signal
11
2013/12/02 18:13:55 [info] 30417#0: *14388 client closed connection while
SSL handshaking, client: 10.192.41.251, server: 0.0.0.0:4443
2013/12/02 18:13:56 [info] 30417#0: *14389 client closed connection while
waiting for request, client: 10.192.41.252, server: 0.0.0.0:80
2013/12/02 18:13:56 [info] 30417#0: *14390 client closed connection while
SSL handshaking, client: 10.192.41.252, server: 0.0.0.0:2443
2013/12/02 18:13:57 [info] 30417#0: *14397 client closed connection while
SSL handshaking, client: 10.192.41.252, server: 0.0.0.0:4443
2013/12/02 18:13:57 [info] 30417#0: *14403 client closed connection while
waiting for request, client: 10.192.41.251, server: 0.0.0.0:80
2013/12/02 18:13:57 [info] 30417#0: *14402 client closed connection while
SSL handshaking, client: 10.192.41.251, server: 0.0.0.0:2443

I can provide some cores, but I can't attach them here. My setup was running
fine till today (which has some coincidence with a new webservice
deployed).

Please could you provide some extra information on how to further debug this
issue ?

NM

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,245135,245135#msg-245135